package com.zcfe.reggie.common;

import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 通用异常
 */

//全局异常捕获器  通过aop拦截实现捕获异常并处理
@ControllerAdvice(annotations = {RestController.class, Controller.class})
//拦截注解上面有RestController的类
@Slf4j
@ResponseBody   //由于类中某些方法需要返回json数据
public class GlobalExceptionHandler {
    /**
     * 异常处理方法
     * @return
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex){
        log.error(ex.getMessage());
        if (ex.getMessage().contains("Duplicate entry")){
            String[] split = ex.getMessage().split(" ");
            String msg = "用户名"+split[2]+"已存在";
            return R.error(msg);
        }
        return R.error("创建失败,未知错误!");
    }

    /**
     * 业务异常处理方法
     * @return
     */
    @ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler(CustomException ex){
        log.error(ex.getMessage());
        return R.error(ex.getMessage());
    }
}
